About Boolean Searches

A Boolean search uses parentheses to group terms and “operators” such as AND, OR, or NOT to limit the search results. A search for potter NOT harrywould find titles by Beatrice Potter but not about Harry Potter. On the advanced search page, this could also be entered as (harry) -(potter). Similarly, ( (mark twain) OR (samuel clemens) ) AND (tom sawyer) would look for either Mark Twain or Samuel Clemens, and Tom Sawyer.